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Convention Paper

The MPEG-4 Audio Lossless Coding (ALS) Standard - Technology and Applications

Authors: Harada, Noboru; Kamamoto, Yutaka; Liebchen, Tilman; Moriya, Takehiro; Reznik, Yuriy A.

AES Convention 119 · Paper 6589 · October 2005

Abstract

MPEG-4 Audio Lossless Coding (ALS) is a new extension of the MPEG-4 audio coding family. The MPEG-4 ALS codec is based on forward-adaptive linear prediction, which enables remarkable compression even with low complexity. Additional features include long-term prediction, multichannel coding, and compression of floating-point audio material. In this paper authors who have actively contributed to the standard describe the basic elements of the ALS codec with a focus on prediction, entropy coding, and related tools. It also presents latest developments during the standardization process and points out the most important applications of this new lossless audio format.

Details

Published in
AES Convention 119
AES Convention
119
Paper number
6589
Publication date
October 6, 2005
Session subject
Audio Coding
Affiliation
NTT Communication Science Labs; Real Networks, Inc.; Technical University of Berlin (See document for exact affiliation information.)
Type
Convention Paper